CST – Computer Simulation Technology

A New TEM Double-ridged Horn Antenna for Ground Penetrating Radar Applications
A. Teggatz, A. Jöstingmeier, A. S. Omar
German Microwave Conference - GeMiC 2006 -
1st January 0001
Within this contribution we will present two major modifications of the standard design of the TEM doubleridged horn antenna, that increase its performance. By filling the space between the ridges partially with dielectric material it is possible to extend the frequency range to the lower end while maintaining the size of the original setup. In addition an absorber structure has been introduced in order to decrease the antennas return loss. The suggested concept has been applied to subsurface radar applications in both, 3d field simulations and various measurement experiments. The ability of this modified TEM horn antenna with respect to the detection of non-metallic objects inside the soil will be verified.

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